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Speargun Gas AND Stun Payload 2026-09-28

A Mod for Helldivers 2
Speargun Gas AND Stun Payload akl_mod_preview_image
Adds a native in-game Programmable Ammo menu to the S-11 Speargun, allowing you to switch between the default Gas payload and a new Stun payload by holding Reload.

Ammo Modes​

GAS — Default

  • Uses the Speargun's original gas payload
  • Native Gas projectile: Projectile Type 125
  • Native Gas explosion: Explosion Type 97
  • Preserves the normal gas cloud/effects
STUN ROUNDS — Alternate

  • Uses the same flying spear projectile behavior
  • Alternate projectile: Projectile Type 300
  • Uses the native StunMassive impact effect
  • Stun explosion: Explosion Type 335
  • Will stun War Striders
  • Does not stun Bile Titans
  • Illuminate/Squid testing is still needed

Base Spear Stats​

Both ammo modes retain the Speargun's normal direct-hit characteristics:

  • 650 Standard Damage
  • 275 Durable Damage
  • AP5
  • Same spear model
  • Same projectile speed / gravity / flight behavior
  • Payload effect changes without replacing the spear's direct impact damage
The ammo selector uses the game's native Programmable Ammo system, similar to other weapons with selectable ammunition. Hold Reload and select either GAS or STUN ROUNDS.

I haven't fully tested every enemy interaction yet, especially against the Illuminate, so feedback and testing results are welcome.

Edit: Upon inspection, it appears the Stun Round used is the orbital stun, so I will fix that later and should hopefully still stun War Striders and not have the demo force to destroy fabricators from any angle... my bad

Compatibility: Disable other Speargun payload mods that modify the same weapon records.

Disclaimer: An LLM was used to do the bulk of the mod building and reverse-engineering work.
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huffdesigns
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Version
2026-09-28
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huffdesigns

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Sep 20, 2026
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is it possible to just buff the speargun? like giving the gas payload more AOE? like i fire it and the gas covers nothing its so small. is it possible to just be as big as the gas strike or like half that size?
next spear gun update may just increase size to that of a gas grenade, but not increase damage or duration